Nano Tungsten Oxide Applied for Nano Heat Insulation Material

Nano tungsten oxide for preparing nano heat insulation material such as heat insulation film may be high-purity yellow tungsten oxide nano powder with the characteristics of excellent heat shielding, UV-proof performance, good dispersibility and dispersion stability. It is reported that such a new type of nano thermal insulation material has the absorbing and reflecting abilities of near-infrared wavelengths in the 800-1000nm region and ultraviolet rays below 380nm.

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As mentioned above, the nano heat insulation material prepared using nano tungsten oxide as a functional medium may be heat insulation film. According to the researchers, tungsten oxide (WO3) thin films can be electrodeposited in a solution containing tungsten and ethanol–water. The structural, morphological and electrochromic properties of electrodeposited WO3 thin film were studied. The results indicate that electrodeposited WO3 thin film exhibited amorphous nature, closed packed nano-granular morphology, good coloration efficiency of 140.79 cm2/C and visible high transmittance of 94.63%.

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